okay. the manga is about a girl that in middle school was very plain...a bit chubby and wore glasses. She also has strawberry panties (i think...someone made her fall and then everybody in class saw it). In highschool she is a real beaty because she has worked hard to become prettier. In school she meets a guy...maybe it was two...i think it was two friends, well anyways, she starts to like one of them and blah blah blah they start going out, he meets old gf's, he meets the girl who took his virginity and is about to leave her and then they get together at the end. I think she was called karen...but i cant remember which is why i'm asking fellow manga nerds. What manga might this be?